According to the system:
5 – 7x + 2y² = -10
1 – 5x – 2y = -22
______________
a) No ; (4, 6) is not a solution to the
system. This point does not touch either equation.
b) No ; (6, 4) is not a solution to the system. This point does not touch either equation.
Solutions:
[tex]( \frac{122 - 3 \sqrt{101}}{25}, \frac{ - 7 +3 \sqrt{101}}{10}) ≈ (3.674, 2.315) \\ ( \frac{122 + 3 \sqrt{101}}{25}, \frac{ - 7 - 3 \sqrt{101}}{10}) ≈ (6.086, -3.715) [/tex]
x = ( 122 ∓ 3√101 ) / 25 ≈ 3.674 or 6.086
y = ( -7 ± 3√101 ) / 10 ≈ 2.315 or -3.715
Answer below
Brainliest
Answer:
25 remainder of 4
Step-by-step explanation:
Answer:
here hope this will be you ^^"
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Balancing equations C4H10O+O2>>CO2+h2O
Answer:
C4H10O + O2 = CO2 + H2O - Chemical Equation Balancer.
Step-by-step explanation:
6.2 as a improper faction
Answer:
6 2/1 i think
Peter buys 8.5 square feet of carpet. The carpet costs $10.20 per square foot. How much does Peter pay for the carpet?
Answer:
$86.70
Step-by-step explanation:
Answer: $86.7
Step-by-step explanation: because you have to multiply them
Determine if this data is an example
of a function.
(0,5); (-3, 4); (0, 2); (2, 3)
Relation
Function
no because two of the pairs have the same input values
What equivalent ratios are less but equivalent to 40:20?
Answer:
8:4
Step-by-step explanation:
3. Se le ha encargado a usted la provisión de muestras para vender en el lanzamiento de la nueva bebida de aguapanela con limón y gas, la cual viene en tres tamaños 350ml, 500ml y 1000 ml. Se le dará una comisión por cada muestra vendida y se le impondrá una multa por cada muestra sin vender. En el primer día usted recibe 300 botellas de 1000ml, 400 botellas de 500ml y 200 botellas de 350ml. Ese día usted no vendió las de 500ml y ganó una comisión de US$30. El segundo día usted recibe 300 botellas de 500 ml y 400 botellas de 1000ml, no vendió las de 1000 ml y recibió US$10. En el tercer día se le entregan 200 botellas de 1000 ml, 300 botellas de 500ml y 500 botellas de 350ml, no se vendieron las grandes y le pagaron US$50. Determine cuánto le pagaron por cada tipo de botella.
I- I would help but- o meh lord
if the cost of a washing machine is 15480 if the selling price is 17000 what is the profit or lost
Answer:
1,520
Step-by-step explanation:
HELP HELP HELP HELP HELP HELP
Answer:
1 question : 0.89 I think.
Answer:
2. 0.51
3. 1.5
4. 0.99
5. 0.66
6. 0.79
7. 5.2
8. 4.86
9. 4.3
10. 1.5
11. 5.84
Divide. 6 ÷ 1/4
helpp
Answer:
24
Step-by-step explanation:
Let’s write them as numbers
6/1/4
Dividing by 4 means multiplying by its reciprocal.
Reciprocal of a number: Can be found when you switch the positions of the denominator and numerator
So reciprocal of 1/4=4/1=4
Next, we multiply by its reciprocal
6*4=24
Therefore, 6 divided by one fourth is 24.
Its neither not both
Answer:
what does this question mean?
Step-by-step explanation:
In the problem above what comes after distribution property?
A. Combine like terms
B. Do the inverse to simplify
C. Do the reciprocal
D. What do I do on the side I do on the other
Answer:
A
Step-by-step explanation:
Id say A Im sorry If im wrong though, this is what I would put
Answer:
where is the problem???
Step-by-step explanation:
Bryce made a scale drawing of a shopping center. The scale of the drawing was
1 inch : 4 feet. A bakery in the shopping center is 10 inches in the drawing. How wide is the
actual bakery?
Answer:
I'm pretty sure the answer is 40.
Step-by-step explanation:
1:4 meaning
1-10 inches
10 x 4 equals 40ft.
Because of the scale being 1:4 .
f(x) = -2x² – 12x – 19
Describe the end behavior and list the number of turning points of each function
Answer:
just figue out 2x2 then the answer subtract 12x then subtrct 191
Step-by-step explanation:
Sam
is training for an upcoming
wrestling match. He trains for 3.5
hours each day Monday through
Wednesday. He trains for 2.5 hours
each day on Thursday and Friday.
How many hours will Sam train
if the event is 6 full weeks away?
(6-7)
A 105 hours
B 252 hours
C 52.5 hours
D 93 hours
The square below represents one whole.
What percent is represented by the shaded area?
%
Answer:
70%
Step-by-step explanation:
Answer:
7/10 or 7 over 10
Step-by-step explanation:
¿Cual es el monto producido por un capital de 7200 colocados al 4% anual durante 3 años y 4 meses ? ( interés)
You have a coupon for 20% off the shoes. Will the cost of the shoes be: MORE THAN $65.95 or LESS THAN $65.95 EXPLAIN
Answer:
take $65.95 times (0.0825) for the sales tax = 5.44
then, add the tax of $5.44 to the original amount of $65.95 = $75.39
Step-by-step explanation:
Answer: less than $65.95
Step-by-step explanation: because its taking 20% away from $65.95
$65.95 - 20% = $52.76
Which is the best estimate of the product of the fractions? StartFraction 4 Over 7 EndFraction times StartFraction 8 Over 9 EndFraction times StartFraction 14 Over 15 EndFraction
Answer:
Product = [tex]\dfrac{64}{135}[/tex]
Step-by-step explanation:
The expression is as follows :
[tex]\dfrac{4}{7}\times \dfrac{8}{9}\times \dfrac{14}{15}[/tex]
We need to find the product of the above expression
As 7 × 2 = 14
So, it will become :
[tex]4\times \dfrac{8}{9}\times \dfrac{2}{15}\\\\=\dfrac{4\times 8\times 2}{9\times 15}\\\\=\dfrac{64}{135}[/tex]
So, the product of the given fractions is [tex]\dfrac{64}{135}[/tex].
Answer:
64/135
Step-by-step explanation:
5.73 Evaluate the expression for 2 22 2. I will give brainliest
Answer:
10Step-by-step explanation:
5·x³/x² = 5·x = 5·2 = 10help me pls!! thank u!!
Answer:
22.916666666 The six is repeated
Step-by-step explanation:
10/12=8.3333333 and 8.3333333*27.5=22.916666666 repeated
Answer:
About 23
Step-by-step explanation:
Weight x 0.83333 = medication
so, 27.5 x 0.83333 = 22.825 (rounded to 23)
Enter the coordinates of a point that is 5 units from (-2, -1). The coordinates of a point 5 units away is (-2, ).
Answer:
22
Step-by-step explanation:
Which of the following provides
the best estimate for 0.69 × 0.29?
(6-2)
A 0.7 × 0.3 = 0.21
B 0.6 × 0.2 = 0.18
C 0.5 × 0.5 = 0.25
D 0.06 × 0.03 = 0.002
Answer:
d:)
Step-by-step explanation:
CAN SOMEONE HELP ME WITH THIS??? I WILL MARK BRAINLIEST!!!
Answer:
-5 count to 0 which is 5 plus 15 so maybe it was 20 degrees when she left school
Suppose that the flying hours for aircraft operated by regional airlines in the U.S. during 2006 are normally distributed with mean 2500 and standard deviation 400. Find the number of flying hours such that about 97.5% of the aircraft has flying hours exceeding this number.
A) 1,700
B) 2,100
C) 2.500
D) 2,900
E) 3,300
Answer:
Step-by-step explanation:
Given that :
Mean (μ) = 2500
Standard deviation (σ) = 400
P = 97.5% = 0.975
Zscore corresponding to p(z > x) = 0.975
Z = - 1.96 ( Z probability calculator)
Using the relation :
Zscore = (score (x) - μ) / σ
-1.96 = (x - 2500) / 400
x - 2500 = 400 * - 1.96
x - 2500 = - 784
x = - 784 + 2500
x = 1716
Hence, number of flying hours required is 1716
A farmer wants to build a rectangular pen which will be bounded on one side by a river and on the other three sides by a single-strand electric fence. If the farmer has 40 meters of wire to use, what is the largest area that the farmer can enclose?
Answer:
A) Dimensions;
Length = 20 m and width = 10 m
B) A_max = 200 m²
Step-by-step explanation:
Let x and y represent width and length respectively.
He has 40 metres to use and he wants to enclose 3 sides.
Thus;
2x + y = 40 - - - - (eq 1)
Area of a rectangle = length x width
Thus;
A = xy - - - (eq 2)
From equation 1;
Y = 40 - 2x
Plugging this for y in eq 2;
A = x(40 - 2x)
A = 40x - 2x²
The parabola opens downwards and so the x-value of the maximum point is;
x = -b/2a
Thus;
x = -40/2(-2)
x = 10 m
Put 10 for x in eq 1 to get;
2(10) + y = 40
20 + y = 40
y = 40 - 20
y = 20m
Thus, maximum area is;
A_max = 10 × 20
A_max = 200 m²
The area of the pen is the product of its dimensions
The largest area the farmer can enclose is 200 square meters
The perimeter of the pen is given as:
[tex]\mathbf{P = 40}[/tex]
Because one side of the fence is covered by a river, the perimeter would be:
[tex]\mathbf{2x + y = 40}[/tex]
Make y the subject
[tex]\mathbf{y = 40 - 2x}[/tex]
The area of the pen is:
[tex]\mathbf{A = xy}[/tex]
Substitute [tex]\mathbf{y = 40 - 2x}[/tex]
[tex]\mathbf{A = x(40 - 2x)}[/tex]
Expand
[tex]\mathbf{A = 40x - 2x^2}[/tex]
Differentiate
[tex]\mathbf{A' = 40 - 4x}[/tex]
Set to 0
[tex]\mathbf{ 40 - 4x = 0}[/tex]
Rewrite as:
[tex]\mathbf{ 4x = 40}[/tex]
Divide through by 4
[tex]\mathbf{x = 10}[/tex]
Substitute 10 for x in [tex]\mathbf{A = x(40 - 2x)}[/tex]
[tex]\mathbf{A = 10 \times (40 - 2(10))}[/tex]
[tex]\mathbf{A = 200}[/tex]
Hence, the largest area the farmer can enclose is 200 square meters
Read more about maximum areas at:
https://brainly.com/question/11906003
Different problem same topic please help
Answer:
see below
Step-by-step explanation:
y = 5x - 31
y = mx + b
where m = slope
slope of a parallel line = 5
slope of a perpendicular line = - 1/5
A plane takes off from an airport on the bearing S 29°W. It continues for 20 minutes then changes to bearing S 52°W and flies for 2 hours 20 minutes on this course then lands at a second airport. If the plane's speed is 420 mph, how far from the first airport is the second airport? Round to the nearest mile.
A. 1011 mi
B. 1111 mi
C. 1010 mi
D. 1110 mi
Answer: 1110 miles
Step-by-step explanation:
Given that :
Speed (V) = 420 mph
t1 = 20 minutes = 20/60 = 0.3333 hour
t2 = 2 hours 20 minutes = 2.333 hours
Distance = speed * time
d1 = 420 * 0.333 = 140 miles
d2 = 420 * 2.33333 = 979.98 = 980 miles
Using cosine rule :
x = sqrt(d1² + d2² - 2(d1 * d2) cos 157
x = sqrt(140^2 + 980^2 - 2(140 * 980) cos157
x = sqrt(1232586.5)
x = 1110.2191
x = 1110 miles
HELP PLEASEE:(((((( THANk YOU
Answer:
(C). g(x) = ( [tex]\frac{1}{4}[/tex] x )²
Step-by-step explanation:
The correct answer is (C). g(x) = ( [tex]\frac{1}{4}[/tex] x )²
Find the product
-3(5) I need help
Answer:
-15
Step-by-step explanation:
() means to multiply
So, -3(5) = -3 x 5 = -15
Answer: -15
The question asks you to find the "product," which means the result of multiplying. Both the word "product" and the parentheses indicate that you have to multiply.
Since it's a negative (-) multiplied by a positive (+), your product will be negative (-).
So, -3(5) = -15.